PXU20020 Datasheet, PDF (9/32 Pages) Red Lion Controls. Inc – MODEL PXU - TEMPERATURE/PROCESS CONTROLLERS

DISPLAY LOOP
At power up, all display segments light, and then the programmed input type
and the controller’s software version will flash. Then the Temperature/Process
Value is shown in the top display, and the bottom display will show the first
Display Loop parameter configured as dISP in Configuration Module 3.
Pressing the = key will advance the bottom display to the next Display Loop
parameter. After viewing the last parameter, the display will loop back to the
beginning of the Display Loop. If the bottom display is blank, it is because there
are no parameters enabled for display in the Display Loop.
Changes made to parameters are effective immediately. Parameters that can
be displayed in the Display Loop include:
SP OP1 OP2 SPrP PId r-S dEv
Pressing the : key will advance the bottom display to the Parameter Loop.
PARAMETER LOOP
Pressing the : key, while in the Display Loop, will advance the bottom
display to the Parameter Loop. Applicable items configured as PArA in
Configuration Module 3 will be displayed in the Parameter Loop. Each press of
the : key will advance the bottom display to the next Parameter Loop
parameter. After viewing the last parameter the display will loop back to the
beginning of the Parameter Loop. Pressing the : key while parameters are not
configured as PArA in Module 3, will cause the bottom display to remain in the
Display Loop and advance to the first Display Loop parameter.
Pressing the = key will return the display to the Display Loop. To accept a
parameter change, the : key must be pressed prior to pressing the = key.
The unit will automatically exit to the Display Loop after approximately one
minute of no key presses.
Parameters that can be displayed in the Parameter Loop include:
SP OP1 OP2 SPrP PId r-S OPOF Prop
Intt dErt dInt AL-1 AL-2 AL-3 ALrS SPSL
HIDDEN LOOP
Press and Hold the : key for 3 seconds to enter the Hidden Loop. If a
lockout code 1 thru 125 has been configured in Module 3 (COdE), the correct
access code will need to be entered prior to gaining access to the Hidden Loop.
If a User Input is configured for PLOC (program disable), the User Input will
need to be de-activated prior to gaining access to the Hidden Loop. Factory
programmed setting for Code = 0, and the User Inputs are not configured.
After accessing the Hidden Loop, each consecutive press of the : button
will advance the bottom display through the applicable parameters selected as
HidE in Module 3. The last item in the Hidden Loop is either COdE or CNFP. If a
lockout code -1 thru -125 has been configured in Module 3 (COdE), the correct
access code will need to be entered prior to gaining access to the Configuration
Loop. Pressing : while CNFP is selected as NO will exit to the first parameter in
the Display Loop.
To accept a parameter change, the : key must be pressed prior to pressing
the = key. Pressing the = key will return the display to the Display Loop.
The unit will automatically exit to the Display Loop after approximately one
minute of no key presses.
Parameters that can be displayed in the Hidden Loop include:
SP OP1 OP2 SPrP PId r-S OPOF Prop Intt dErt
dInt AL-1 AL-2 AL-3 ALrS SPSL tUNE CtrL trnF
D
MAIN
DISPLAY LOOP
P
D
PARAMETER
LOOP
P
Hold
P
Hold
P
IF Code =
1 to 125
IF Code =
0
IF Code =
-1 to -125
COdE
1 to 125
P
HIDDEN
LOOP
HIDDEN LOOP
* w/CONFIGURATION
LOOP ACCESSIBLE
COdE
-1 to -125
P
* ^{CONFIGURATION}
LOOP
* If PLOC is active, the Configuration Loop is not accessible.
 

ACCESS CODE
 to 
If the Access Code is set from 1 to 125, in Lockout Module 3-LC, CodE will
appear prior to gaining access to the Hidden Loop. By entering the proper code,
access to the Hidden Loop is permitted. With the factory setting of 0, CodE will
not appear in the Hidden Loop.
  _{- to -1}

If the Access Code is set from -1 to -125, in Lockout Module , CodE will
appear as the last Hidden Loop item. By entering the proper code, access to the
Configuration Loop is permitted (with a negative code value, the Hidden Loop
can be accessed without the use of a code). With an active User Input configured
for Program Lock (), CodE will not appear. An active user input configured
for Program Lock () always locks out the Configuration Loop, regardless of
Access Code.
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